... Thus, it adopts a broader posture toward Observability by allowing for something other than what is visible to the eyes (I may hear about it, or read about it being used – these are also observable, as Rogers described it). For example, if I tell colleagues about having used the web to search for some important information, then they are aware of me having done so, and may form an opinion about this behavior without ever seeing it. It is this element that we focus on. This notion is also consistent with theories regarding the importance of critical mass in the adoption of communications technology (Ilie et al. 2005; Li et al. 2005; Lou et al. 2000). For purposes of clarity, we call this Others’ Use.